RealCalc Plus

Quartic Software

About this app

RealCalc Plus is the pro version of RealCalc, one of Android's most popular scientific calculators.

RealCalc Plus is designed to look and operate exactly like a real hand-held calculator. It has all the standard scientific functions plus fractions, degrees/minutes/seconds, history, memories, customizable unit conversions and constants. You can choose from a number of display styles and formats. It also supports binary, octal and hexadecimal calculations and has an optional RPN mode. RealCalc Plus is easy to use, but has full help included in the app.

RealCalc Plus includes the following features:
* Traditional algebraic or RPN operation
* Fraction calculations and conversion to/from decimal
* Degrees/minutes/seconds calculations and conversion
* 12-digit display
* Extended internal precision (32-digit)
* User-customizable unit conversions
* User-customizable constants
* Percentages
* Result history
* 10 memories
* Binary, octal, and hexadecimal (can be enabled in Settings)
* Trig functions in degrees, radians or grads
* Scientific, engineering and fixed-point display modes
* 7-segment, dot-matrix or standard font display
* Landscape mode
* Homescreen widget (now with RPN support)
* Configurable digit grouping and decimal point
* Three RPN styles: direct-entry (classic RealCalc mode), buffered-entry, or XYZT rolling stack
* Multi-window support with drag & drop
* External keyboard support
* Full built-in help

Ratings and reviews

Like others I bought this at least 10 years ago and it's one I always come back to. I don't like the simple default calculators that come on phones. Even if I don't use the advanced features that much, it's nice to know they're there. The nostalgia feeling is great too. I'll often load up RealCalc on my phone instead of grabbing my real life calculator especially if the room is dark, that's no problem for RealCalc.

This has been the only calculator I've used for 11 years now. It's one of the very few apps I have which have lasted this long while still being updated. From new phones and tablets, it's always in the bottom left corner of my home page. As for reliability, on the off chance the app malfunctions I would assume it was a problem with my phone, not the app. Bottom line is it won't replace a graphing calculator, but it definitely does not disappoint. Buy it.

I last reviewed this 11 years ago! And it's just as great today as it was back then. A great look and feel with plenty of functionality including RPN modes! The conversion feature is super useful, too. If you need a solid, flexible, and reliable calculator, this is it. Thank you, devs, for keeping this current. It's become an old friend.

What's new

* Updated for Android 13.
* Constants updated to latest NIST values.
* Added redo-last-conversion feature.
* Custom data export/import now uses Storage Access Framework (save data to local storage or cloud services).
* Added option to include labels in clipboard copy.
* Added ability to resize and reposition layout on devices with large screens or unusual aspect ratios: go to Menu > Resize.
* Fixed some UI issues and crashes.
* Added monochrome app icon for themed icon support.